It can be - yes. Not disagreeing at all, just a different view, slightly as well.
8 Mechs isn't a long time and again that is just my opinion... It will also allow you sufficient time to get the 'basic' map movements, loadout heat management and a bunch of the super basic stuff out the way before moving to more advanced tactics that FP teams/groups, sometimes, employ.
I say sometimes because some of the tactics out there still leave me totally scractching my brain in confusion.
The other side of it is economy. Ability to deal damage and earn cbills for time invested in cbills - which a new player with limited mechs/loadouts/ranges, is just not going to get. They are better off in QP doing 300-400dmg in 5mins than FP doing 700dmg over 20mins.
Of course if this guy can output 800-1000dmg game in, game out, then OFC - FP away, you'll make plenty of $$.