My copy of 2e says STR -1 DEX +1 END -1. If there's a printing that has -2 that's probably an error rather than intentional. Still net -1 rather than net zero, but the difference is important on a 2d6 scale.
Also Dex governs more skills than Str or End. The stats simply aren't perfectly balanced the way they might be in, say, some editions of D&D (theoretically anyway).
Because you want to play a Vargr, rather than for the pluses.* Although I broadly prefer balanced choices myself, and my houserules in 1e reflected that, it's not a deal breaker for me. Another way to look at it would be, if you're stacking a Vargr's +/-'s where you want them on a character, you're already coming out ahead of playing a human with +/- 0 everywhere. The minuses are real, but probably not on your most desired skills.
... and their +1 Recon & Survival bonus has a limitation in that they suffer a -1 to ANY sight-based skill check in dark conditions (so as well as Recon & Survival it affects night gunfights, night driving if no lights, the list could be extensive)
You're leaving something out there, but how much you get from it will depend on GM. The language in the rulebook is "Vargr have better hearing and sense of smell than humans. All Vargr receive DM+1 to any Recon and Survival checks they have to make."
GM call: does better smell sometimes mean they can recognize odors or follow trails that humans simply can't, or is +1 to Recon and Survival the only thing they ever get from that? With better hearing, can they sometimes hear a frequency or conversation a human simply can't, or is it only rolled into a +1 on a thing a human can also roll for? As GM I would rule it's an extra capacity not fully represented by the +1, but I imagine there are GMs out there who rule the second way.
In a perfect world, don't run under bad GMs, be willing to walk away, but I know that's not always possible if they're not bad in every way.
*This won't help you at all unless you're the GM, but a thing I've been thinking about across several systems is there's nothing automatic or even desirable about handling all stat strengths and weaknesses with a +2/-2. In D&D it could easily be minimums and maximums (and I think was in some early editions). In current Traveller it could easily be rolling strong stats with Boon and weak stats with Bane (in which case I would give Vargr and everything else equal numbers of good and bad stats.) That gives you a meaningful impact, but without the full powergaming impact of being able to put a +2 on your best stat.