It's like talking to a wall or some willfully obtuse zealot. Lazael can also dip her weapon, so this makes no difference whatsoever in a comparison between Shadowheart and Lazael because the gap stays the same.
I don't care what you think Larian wants, and indeed I am obsessed with how I want to play, because it is a FEEDBACK FORUM, and the point of this thread is to tell them their current combat design is far inferior to their Divinity iterations just because they want to cater to some DnD fanboys even if the combat experience comes out worse for it.
Larian homebrew worked just fine for me in DoS, this DnD crap doesn't because unlike in DoS where abilities felt powerful, reliable, and were only limited by action point cost, now in in BG3 I only have the option of terrain and elemental surface abuse unlike in DoS where the options were there, but the abilities and combat itself offered viable, non-frustrating alternatives.
I don't know how anyone can say waiting 6 enemy turns to miss the only 70-80% hit chance spell you get to use in a turn and out of 4 minor or 2 major spell slots is good design comparatively to DOS.
Shadowheart gets +2 AC that Lae’zel doesn’t. 
I once thought like you that this is a feedback forum. You’ll soon learn that Larian has certain ideas on combat for BG3 and will only deviate in small amounts. The good news for you is you like DOS so you may get a few more mechanics that you may like but much of what you are seeing is what you are getting. 
Cater to D&D fanboys? BG3 is based on a D&D setting. I think Larian should at least try to throw them a bone. 
I get it. You want DOS 3. You’re not getting it with BG3. You’re getting a horrible mix of 5e and DOS. I think we can both agree what is in place now is bad.