Why not...I think that many would want it to be user replaceable...especially when spending that kind of money...unless the batteries were warranteed for multiple years...even so, no one wants to send their amp out especially those who it will likely be their only amp...just change the cover and make it "rechargeable only batteries" and it could be left up to the buyer what batteries they wish to use...I prefer eneloop and hybrio, the two best rechargeables on the market right now!!!
As for the battery cover (as always) we had to make choices.
For one: Any other options to make the battery-cover 'easier' resulted in a deterioration of the housing 'looks&design' and/or made it much more expensive.
For two: The V2 having a USB input sort of determined it had to be chargeable only and that Alkaline batteries were no option (or at least hard to implement). So the V2 had to come standard with chargeables and that removed the need for changing batteries.