Oh it do. In D&D terms, I'd give it a D6 - which I'd obviate if the PC took a standard action to 'clear' the window first or even if they led the way with a shield or a table or something. It IS an adventure game - we want them to do cool cinematic stuff.
As an aside: If you find yourself in the unfortunate position of HAVING to go through glass (that's not made from sugar), some tips on how to avoid becoming a cautionary tale about laceration:
1. Lead with something hard. Tables are nice... Even cracking it first makes bashing through it much easier. Not 'safe'. Easier.
2. Chin DOWN. Shoulders UP. Elbows IN. Eyes Closed. Mouth SHUT. Brows Beetled. Inside of arms and legs proteced as much as possible. You are basically in a knife fight with Newton - You're going to get cut anyway, but try to avoid non-trivial exsanguination and crippling injuries...
3. Move STRAIGHT through the glass perpendicularly. Moving side to side or up or down (even slightly) as you pass through the plane presents your too soft flesh to too sharp glass. Bad. Forward movement moves and deforms glass away from you (mostly).
Get ALL the way through it. Falling INTO the pane (landing on the shards still in the frame) is a great way to get dead.
4. Do this as quickly as possible.
5. You are probably going to land on broken glass when you hit the ground. It helps immensely if you are
rolling rather than
sliding when this happens. Rolling on broken glass will still cut you. SLIDING on broken glass is much worse. Sliding along broken glass with outstretched hands (instictively trying to break your fall) is about the worst thing you can do...
Judoka and Aikidoka will be tempted to use standard Ukemi (slapping the ground or leading the roll with your palm). Resist this temptation...
This is further complicated if you're also coming from a height. Mind you, if you're coming from
really high, the glass becomes the least of your worries
6. Standing up after. Play this by ear. Take your time. Consider waiting for the nice men with the big rubber boots. Blood is annoyingly slippery and falling BACK onto broken glass is not fun.
Fortunately the only glass I ever got thrown through was that security glass with the metal mesh embedded in it. The whole pane comes out rather than it shattering. No real cuts. Some nice bruises though...