Yes, Helldivers 2 has released less than 2 months before than the Q1 of last year (Q4FY24).
They had a spike last year due to the Helldivers 2 release, so obviously recovered the previous and current quarters from it going down YoY this and the previous quarter, even if almost matched the previous year results. Excluding that, they had a huge growth YoY with their off-PS revenue (which they mentioned multiple times it's very profitable and has a huge ROI). So no, they aren't a poor job. The opposite.
Destiny 2 and Helldivers 2 were among the top 10 Steam games of last year, and over 40% of the first party revenue made this quarter comes from (both PS and off-PS) MLB, Helldivers 2 and Destiny 2, the PS active userbase kept grrowing this quarter YoY, hardware sales increased YoY and the SIE profit grew approximately 2.3 times year-on-year partly and regarding their forecast for the FY they expect increase in profits mainly thanks to cuts in their firsty teams and increased revenue from first party (they think Marathon+Yotei+DS2+Lost Soul Aside+Days Gone Remastered+addons and ports will make more this FY than did in the previous one Helldivers 2+Stellar Blade+Rise of the Ronin+Astro+Lego Horizon+Until Dawn remaster+addons and ports).
The numbers show that their multiplatform stuff isn't damaging their brand or console: the opposite, it's helping to grow them not only making extra money outside PS, but also helping to grow PS bringing new players to the console, which instead of shrinking is growing.
Bungie did stop being independent the day SIE acquired, same day SIE put their head of SIE first party games and the head of SIE marketing in the board of directors of Bungie.
Now, after they reduced redundancies and integrated certain Bungie people they wanted in central SIE teams that work with all GaaS titles (not only the Bungie ones), they are moving them formally under PS Studios (previously to this Bungie already reported to their boss Hermen, like their other first party teams).
I think it makes more sense to have them inside PS Studios, will help them reduce costs and exchange knowledge and expertise with the other teams.