Dive boats are a business, typically they have to move a certain number of divers through the boats to stay afloat (pun intended, to lighten the mood) To do this, they typically plan dives out to allow for two trips each day. This leaves them with a range of sites they can visit to keep the dive time plus the SI times plus travel time to under half a day.
So, as a business, if you feel that tables are not accurate and you wish to be more conservative, you might lose out on that second dive. It's certainly fair for them to run their business this way. Think of it like a bar: they give a call for last rounds before they close. You either buy then, or you don't buy, because they have to close.
Now, if the operator took you to sites that required a longer SI, then demanded that you enter the water again, that might be something to complain about. But if they used Navy tables, or anything more conservative, then I don't see what the problem is, with them planning for a trip that had a 45 minute SI.
I've been on boats that had shorter SI's, and longer SI's, it depends on the trip schedule. Typically, if you take the boat for the day, you dive deeper sites, or more sites, and have more SI, but you also pay more because you kept them from running two trips.
I don't get your argument about bubble size change, because tables are based on bubbles and size changes, and on preventing DCS. I have a feeling the tables took into account the pressure change
Divers don't necessarily need to put thought into what goes on behind tables, that why we have tables. I agree, it's good to understand, but the fact remains that only a few people are "smarter" than tables. If you blindly follow tables without knowing anything about what science is behind them, you are statistically about as likely to get bent as the person who created the tables, using years of research and science dives. ie, nitrogen bubbles don't care how smart you are, but they do seem to respond well to following the tables.
I understand why you might find the reaction knee jerked and slightly mean spirited, but it's a sad fact that most divers can't even read tables. Heck, a lot of them can't even read a dive computer! I think the post which you took as rude was really meant to say "if you can't read tables, learn how, because it's important." when your original post seems to say "I know how to read tables, but I don't trust them"