Yeesh, those are not exactly great bans. Ernest is not worth a ban, or even an early pick, simple because there are too many strong counter-picks (Thorn, Marquis, Ghalt, etc) and strong characters that can fill his role. He’s a fat target (see also: Kleese). He’s totally worth a late pickup if you are lacking on waveclear, but honestly, there are just better picks in the role that have less counterplay.
Also, banning healers first is a bad idea. There are enough strong healers that you can’t effectively pinch that role in the ban phase, and you’re giving up much stronger bans. Every once in awhile you’ll see an Alani ban for meltdown, but that’s because she has such strong lane sustain for smaller groups in addition to strong waveclear. You shouldn’t be banning Alani on Incursion since it’s much harder for her to sustain full teams against full teams. In fact, you should probably leave your healer pick(s) for 3rd or 4th pick in reaction to your teammates’ and enemy’s picks. If the enemy team is full of strong poke damage, a healer like Alani is going to suffer since she can’t heal groups fast enough, while Kid Ultra and Ambra will thrive since they can heal multiple targets at once against poke damage. If you have a large distracting bullet sponge like Kelvin or Montana, healers like Alani and Miko are going to be more at useful than the relatively weak single-target heals Ambra and Kid Ultra provide.
If you want to look at good bans in the current meta, ban away OP characters, strong CC, tanks, or basically anyone that takes away your agency to push or can put you in a position you don’t want to be in with minimal counterplay. Specifically, characters like Beatrix, Galilea, Boldur, Kelvin (although he has the most counterplay of the tanks mentioned, he still has arguably the best setup and teamplay in the game), and Ghalt. Sometimes, if you’re T1 and are trying to secure one of these, you could opt for strong target bans like Thorn or Orendi, but in general, T2 isn’t going to put themselves in a position where you can secure a power pick and they can’t secure one in return. If you’re T2, you are required to ban away first picks like the ones mentioned unless you want to just jack off behind a corner all game because Galilea shuts down any push attempt you make and Boldur is constantly diving your backline, killing your carries, and getting away with it despite eating three stuns because he’s Boldur.