I think I would be more okay with having to undo a screw or two as long as it was still just as easy to get the battery out. The way the Advance SP and DSs handled it. Lithium batteries are slightly more unfriendly to being handled than AAs and this is a device aimed at children. Your point stands though.
I think the New 3DS had the best implementation. The swappable backplate were cool and provided easy but child safe access to the batteries behind 2 normal Phillips screws.
I think I would be more okay with having to undo a screw or two as long as it was still just as easy to get the battery out. The way the Advance SP and DSs handled it. Lithium batteries are slightly more unfriendly to being handled than AAs and this is a device aimed at children. Your point stands though.
I think the New 3DS had the best implementation. The swappable backplate were cool and provided easy but child safe access to the batteries behind 2 normal Phillips screws.