I'm going to write an impartial response regarding wearing weightlifting shoes for deadlifting based on my own experience. I'm not taking anybody's side, just throwing my two cents in here.
I train weightlifting. Before that, I trained powerlifting. During the time I trained powerlifting, I would pull once or twice a week in my Chucks with a mixed grip or hook grip, but no straps.
Now, I only perform it once in a blue moon (not counting the other deadlift variations for accessory) with straps or a hook grip as a test of strength. Since I don't carry my Chucks in my gym bag anymore, I do them in my Adipowers. The most I ever pulled in my Adipowers was 515 lbs; 555 lbs with my Chucks.
The main difference between the two shoes is the height. My Adipowers have 3/4 inch inclined heels so obviously the ROM of the deadlift is increased and I need to tilt my back more to straighten it. The difference in height may seem negligible at a glance, but when it comes to pulling, I can feel an immense difference in the mechanics of the pull. There's more straining to keep my back from rounding and to cover the extra distance of the bar to lockout; in a nutshell, lifting in WL shoes is not the most ideal way to go about it.
Again, but that's just me. YMMV. Honestly, I think it'd be wise for you to open your mind and learn through trial and error instead of outright dismissing an idea. Really, that's how I learned to lift here in f13 over the years; I just picked up bits and pieces of other people's advice, tutorials, and suggestions (Thanks,
@Urban ). I kept what worked for me; discarded what didn't.
Try lifting in Chucks and see how they fare compared to the WL shoes. If they suck, then stick with the latter. There's no need to get defensive and hostile here; it's just a forum.