This statement may put Janemba and SSJ3 Goku stronger than SSJ Gotenks in this movie, although it is not definitive.
I have the two of them stronger than Gotenks either way.
From a neutral position, I can say that Anime Dabura in no way compares with Super Perfect Cell and Broly by feats is at least Super Perfect Cell level. Anime Dabura shouldn't also be that much ahead of Perfect Cell.
It is likely refering to Fat Majin Buu as the one who is commeting also comments about Janemba who in his first encarnation isn't much ahead of the former Buu.
Also this movie is loaded with inconsistencies, Broly can be defeated by lava, even though, Namek SSJ Goku is unaffected by it. Does this mean Namek SSJ Goku > LSSJ Broly (M10)?
Base Gohan is weaker than Ssj Goten as shown in the beam struggle. An example of a blast that overwhelms an opponent would be like what Trunks did with Imperfect Cell, in this case, it just pushed him largely back and just got annhilated by the sun.
@Power Level Guy
You're giving more merit to Goten & Gohan to what it can be given to the sun. And Broly is using a small blast with barely charge to basically overpower them both.
Piccolo is comparing them in a weaker form or he just failed on his estimate. Gohan wasn't shown to be training on the film and still could take them down. At the very best, Gohan is just equal or slightly better than what he was in TOP on which he was no match for Base Toppo who is a rival to...
Except is an established rule made in Broly's case. Unless you've valid evidence to prove it wrong or either case being the same as Broly, is a flimsy reasoning it best. Burden of proof on this case relies on you proving how Broly is not limited by the script.
Would Goku be saying Hatchiyack...
The Movie takes place after the fight with Jiren and Broly. I think Piccolo is comparing them with SSJGs and afterwards realize how they're stronger than what he thought. Ultimate Gohan was taking care of one of them on his own.
Possibly, SSJ2 Gohan could hold his own against him. So, he is getting defeated by high SSJ2 standards.
Broly is always nerfed, I don't see the correlation.
@Power Level Guy
It is actually needed a extreme mental agility to create or develop a scenario in which Broly is defeated, at least for both times he appeared. Does it exist a coherent scenario for Broly to be defeated by Gohan, Goten, Trunks or Goku?
Broly doesn't have limitless power.
Being able to defeat weak Z Fighters in relation to Vegetto or Buu =/= Having limitless power or being invincible to the Z standards
Also, I'm not denying Majin Buu's superiority which is further implied by Janemba's movie.
In a real scenario, Broly could...
From the future perspective it can be. From how we are supposed to interpret it, no. This scalling mostly takes into account the 90s material and how it could fit with the movies.