YES. I remember seeing Rosemon's design for the first time when I was 8 or 9 years old and I absolutely fell in love with it. I was really sad that Palmon never reahed her Mega level but at least we got a chance to see her in Savers!
Ya, I was always sorta bummed out that Agumon and Gabumon were the only Digidestined Digimon to reach Mega in the show... and always weirded out that T.K. and Kari's Digimon reached Mega in one of the movies, but only for a few seconds to somehow trigger the Digimental (I refuse to call them "eggs") of Miracles to appear. It seemed like kind of a waste of their Mega forms, imo.
But, ya, anywho, I'm glad that Rosemon did eventually appear in Savers, if nothing more.
Out of the original 8 Chosen Digimon from Digimon Adventure, only Agumon, Gabumon, Patamon, and Gatomon ever reached their Mega level.
Even though we never got to see Palmon turn into Rosemon in the anime, it's not like we never saw her in the anime. Rosemon is the Mega level Digimon that one of the main Digimon from Digimon Savers (aka Data Squad) attains, afterall.