With zero video editing experience, I recently shot and edited a 7 minute video of myself playing guitar, entirely on my iPhone. I was pretty surprised how well it worked. Yeah there were some UI warts (editing text, like you say...), and I wouldn't want to work that way for any serious work, but it really did lower the barrier for a complete noob in a way that finding/buying some PC video editing suite couldn't.
You say you wouldn't want to use this simplified phone-based video editing tools for serious work, but there is an entire industry's worth of livelihoods being made on TikTok and Instagram using these very editing tools. Not saying this to knock down your point or anything, just highlighting the fact that these tools have actually become good enough (sure, no one is editing feature-length Hollywood movies using them) to be qualified as "serious work".
