Maybe by now he feels too tight within current gen's limits and he'd like MS to push more PC gaming, where he could enjoy larger HW resources. Obviously, if he so likes, he could focus on PC developing anyway, but given how ambitious are his projects, he wouldn't turn down some more help and PC focused advertising from MS.
If what he says isn't dictated just by his wet dreams, maybe he means that keeping an eye on competitors shouldn't degenerate into obsession because it makes people and companies work worse.







