Thing is, many/most divers never set foot in a brick and mortar "shop" in Cozumel, or if they do, it's only to drop off their gear on the first day and retrieve gear and pay for the diving on the last. Except for the few dedicated dive resorts such as Blue Angel or ScubaClub, and the few hotels with onsite dive ops (assuming one wants to use the onsite op), the only interaction with the dive op is by boat or hotel lobby. For instance, on my last trip, I stayed at an AI resort with an onsite dive op. Yet I chose to dive with one of the many small-boat operations on the island instead. On my first dive day, I brought all my dive gear to the boat. Had I decided to dive with an outside dive op that did not store gear, I would have had to bring all my dive gear back to my room with me each day. Instead, I chose a dive op that stores gear (and wetsuit), so after I brought my gear the first day, I didn't have to worry about it until the last day. Instead of having to bring dripping gear back to my room each day, I only had one day that I had to deal with figuring out how best to rinse it in the shower than drag it through the room and onto the balcony to dry instead of having to deal with the hassle on a daily basis.
Honestly, I don't give a whit whether they clean it or not. I've done plenty of liveaboard boats where the gear sits unwashed from the end of the dive day to the beginning of the next. But I don't want to be dragging wet stuff around my hotel, and especially when I'm already carrying a heavy camera setup.
Oh well looks like Cozumel is off my list. I have plenty of places to dive as the Pacific islands are so very close to us with many many great dive spots and much history regarding wrecks etc. We have been doing 3-4 dive trips a year and do research each site before we book to make sure we get the best value we can. . We have already avoided a number of LDS at some places based on either bad reports or their bad initial handling of us. Where we get bad service at a site we always report how we see it either here or in Trip Advisor but always endeavour to be honest about things. Have found it very effective in sorting out some poor operators. I have been rang once from an overseas site asking for me to change my review as it was affecting their business. My response was that the review was honest, and if its affecting you, then maybe you should change some things rather than just ask me to remove my review. Another business local to where I live had great product but badly installed it and very bad customer service. I did a review on a solar site about it, I got discrete feedback they they were not happy, however I was very honest in that the product was great, and just called it the way it really was. I have since found that they are now struggling as they are continuing to treat locals badly with a not unexpected effect of not getting business. Everyone I have spoken to about them have made the same comments. In contrast I have other businesses I am prepared to pay a little more for any service as they always do a great job and try to give good service. I believe in loyalty if a business is well run. Price is not the only thing that makes me commit to a sale. Reliability, ethics and a great product also are a part of that equation.
Sadly, although I know little about Cozumel and what it offers its already now down the bottom of my to do list unless I see something about it to prick my interest. Too many other choices.