Easier said than done when those games are expensive to make, will sell to less people than ps360 or mobile, etc.
Every new generation this argument pops up whenever one of the consoles is deemed to have less games than the other. Last gen it was PS3 had no games, before that Xbox OG, etc. Then, an exclusive hits the ground and moves units, and eventually the old consoles stop seeing releases. This generation is only different because the supposed killer exclusives sort of hit the ground with a whimper. Titanfall didn't do what it was supposed to, Mario World/Kart gave slight boosts to the U but not enough, and the PS4 is winning basically by default by simply not being the dumbest kid in the special ed class that is this generation to date.
Every single studio seems to have gotten their dev kits way late, because this gen really isn't going to bear fruit until 2015, if E3 and the utterly shit 2014 release docket is anything to go by.
The difference is, neither system has games worth playing in the works that are exclusive, new, or original aside from...Quantum Break? DriveClub? Uhhhh, I guess? In the past, there was FAR more variety to play. By January 2002, ps2 had stuff like Onimusha, Devil May Cry, Final Fantasy X, Metal Gear Solid 2, SSX, Smuggler's Run, SSX Tricky, Klonoa 2, Dark Cloud, Tekken Tag Tournament 2, ICO, and a lot, LOT more. Gamecube and Xbox were no slouches either, and for ps2, this was ALL before its second anniversary.
By this point in the game last generation, 360 had Dead Rising, Saints Row, PGR3, Oblivion, GRAW, Mass Effect, Crackdown, Gears of War and lots I'm forgetting out, announced, or on the way. This years E3 was the chance for both consoles to show they have something, ANYTHING, beyond the same crap we've been playing for 8 years. They didn't have anything.
I expect similar results at 2015's E3 and by that point, they'll have been out for a year and a half, which was the point when stuff like Devil May Cry, Klonoa 2, MGS2, SSX Tricky, and ICO came out for ps2.
That's pathetic, and given how long it takes for these games to actually come out in between being announced and development time, I can bet console gamers are going to be waiting a lonnnnng time for some worthwhile original titles.