I mean that Swiatek has bettered her game in a bunch of ways since breaking through at RG. Her rise to a very clear number 1 and a few more slams was not done without working on her game a lot to translate more to HC. By "enough" I mean that she has improved in enough ways already that I would be surprised if she and her team cannot find further ways to adapt to the matchups she is struggling with. Seems pretty harsh to judge her game for imbalance (which it has in some aspects, I agree) when to my eye there has already been substantial change and great success... if she starts losing a bunch of matches in a similar fashion I'd be quite surprised.
This era is particularly very weak inasmuch most Top 80 can beat anyone at the top on a good day, but like Nadal had in his heyday in ATP, likewise Swiatek in WTA has just too few bad matchups and way too many comfortable players up against who either don't have a powerful serve-FH combo or just enough variety to beat her.
You can be one-sided in more ways than one, some are just good at one particular thing: rallying or baseline ballbashing or power hitting without too much variety.
Being unbalanced is more like tending to go for your strengths and ignoring your weaknesses, but also failing to cover up your errors, so you become predictable.
Maybe this happening to Swiatek in a way she didn't expect it to happen so soon? Adding some variety to your game and going to the net more often would be the more appropriate response, also improve on your return game.