No?
Power level increases result in exponential growth in power going by actual feats so even if we did away with scaling characters linearly you’re still left with the issue of a PL of 5 being 10-A at most, and a PL of 180 being 5-C coupled with Freezas destruction of planet vegeta at a PL of 530,000 which is calced at millions of times above 5-C despite the gap in PL between him and the weakest moon buster being less than 3000x
And let’s not pretend the accepted 50x of SS1, Kaioken and Freezas percentages of power don’t have a 1:1 correspondence with known power levels.
The suggestion is simple, scale characters linearly off the weakest feat they have as a baseline, after they reach, say, 5-C you scale them by how many times their PL is above that up until they reach 5-B ( vegetas planet buster ) and so on.
Backscaling doesn’t work because the feats vastly surpass the gaps between power levels, and whenever it is stated a character got 10x or so stronger they are clearly referring to BP not just their stats. linear scaling is a lowball if anything.