This logic sounds like "I've heard that if your car falls in a river, wearing a seat belt makes it harder for you to get out. I don't have time to worry about whether that's a real problem, so I just don't wear my seat belt. Too much complexity."
I use a few different versions of keepass on two laptops and an android, and they all share a keyfile through dropbox. I get most of the same functionality that my wife does through LastPass. It's convenient enough that I don't see any reason to migrate to LastPass, despite their much more polished user experience.
KeePass is more secure than LastPass, not less. I've tried a couple different password managers, but always come back to KeePassXC with a simple auto-type workflow. My reasons:
A. The auto-fill extensions don't work on enough sites to make it annoying (maybe ~20%). Auto-type is a more consistent workflow for me.
B. Lastpass (and friends) browser extension doesn't do anything for desktop apps, SSH sessions, or anything outside the browser. You have to copy and paste one at a time.
C. I like all my passwords to be a particular format because it frequently happens that I have to type them in manually (Phone, vCenter console, BIOS, etc.) and I just like that to be easy. (I use 5 groups of 4 lower case separated by periods, with one number and one upper case letter in the last group. Still very strong but also manageable to type into an iPhone).
D. I like to record more than just passwords (the email I used, answers to security questions (always random, but legit looking), bank and credit card details, stuff like that). The KeePass UI for keeping those kinds of notes is just so much cleaner, simpler, and better than anything else.
E. KeePassXC has first class support for Yubikeys.
