I did not think ALL heavy tanks users are imbeciles, but I definitely think you are after what you just said here lol
The main exception to this rule is when a competent player is doing a challenge that forces them to build heavy tanks. It's still a bad strategy, but it's not a bad player, per se.
I've seen HT used as damage soakers on an arty or RRG stack. They are good at that, because they have a lot of HP. Still not the best idea. There are other ways to get HP into your stack for a lot less. Upgraded militia come to mind. Other tough, upgraded units could be mechanized infantry, regular infantry. Those do better in RRG battles because RRG do more damage to heavy armor, making blueprint militia a very effective, cheap soaker. And you can scatter them if needed to play a special forces role. HT can't do much of their own. They are basically large, slow, expensive targets.