That is certainly an alternative - and perhaps easier to implement than a "do it anyway" right-click. However, from a user perspective, an analyse it anyway right-click avoids the need for the user to chop and change their preferences because this time they DO want to analyse 1000 albums, and avoids the performance hit when you don't want the analysis done (and most times you select multiple albums I suspect it is to Remove or run Remove Perfect Albums or similar rather than to see the analysis) but still allows you to get the full analysis if you want it.