"last-minute cash grab" sounds really unfriendly

most artists slow down after their 60s, actors choose simpler roles, their lines are given through earpieces, writers either retire or write new formulaic books relying on the success of their old novels... musicians' new recordings also decrease. If we look at Maiden's generation, we can see that many other groups have already stopped producing. Of course, there are exceptions like Priest.
What happens if a new album comes out? Just like with the new Star Wars films, fans rush in to bash them and demand the classics. They would critize the sound, the production, the cover art, the long intros/outros, bruce's struggling vocals etc... And at the new album tour the "play classics" stubbornness will start again. Senjutsu was a very good album, they played 7 tracks from it over 2 tours, but most fans wanted the classics rather than the new songs. The band has grown a lot in recent years, and their mainstream audience has increased. That's why I understand them. If a new album were to come out, knowing that it would truly be the product of a special effort makes me happy. Otherwise, writing 10 new songs for Maiden members wouldn't be that difficult. The real issue is creating an album that would satisfy them as artists.