I think this is a reasonable response for this particular situation, but I am worried about expectations and setting as a precedent. I was fortunate enough to get some packs before the cutoff, but I can certainly understand the frustration experienced by those who thought they were getting it, and am fully in agreement with the spirit of #2 and #3 as a remedy for this particular pre-sale.
Personally I don't have as much sympathy for the first proposal point - the use of vouchers looked to me very similar to the voucher setup that has been on the Chaos Legion page for months, so I'm not sure how it was so confusing. However at 2-3% impact, it's not a make-or-break in my view, although wonder what precedent it sets.
I worry though a 3 minute window on future presales may pose some problems in the future if demand far outstrips the desired presale supply. For instance, we saw how quickly the large investors mobilized on nodes. If presale is targetted at 500,000, and this sells out in first 15 seconds, it seems plausible that deep pocketed investors could quickly assess, and perhaps buy much more than intended. How upset would this community be if the entire Riftwatcher edition was purchased in a 3 minute presale window? Diluting promos and further limiting accessibility for anyone that couldn't be at a computer for those 3 minutes.
RE: Riftwatchers: Success, debrief, request, proposal, and future sale plans