When is perception not reality? On threads like this, most of the time.
The Texans only had 6 first down plays in the 1st half against the Vikes, excluding the last ditch series that started at 0:36 near the end of the half.
Of those 6 first down attempts, the Texans ran the ball twice and passed (or attempted to pass) four times.
The Texans only had the ball for three drives in the 1st half. The playcalling sequence:
Drive 1: pass-pass-run-run-run; PUNT
Drive 2: run-pass-pass; PUNT
Drive 3: pass-pass-pass-pass-pass; PUNT
Notice on Texans drive #3 -- which started at the 6:06 mark of the second quarter -- with the Texans down only 7-0 at the time -- they attempted 5 straight passes. The drive stalled and Stanley had to punt. For some reason that drive is forgotten but the last three plays of Drive 1 are used as exhibit A by the play calling posse. To me, there's no difference in a pass oriented drive that fails and a run oriented drive that fails. The end result is they both fail.
The Vikes on the other hand, hogged the ball in the first half with a nice mix of run-pass (about 50-50 but it was run dominated until the Vikes last drive of the half). They ran Mewelde Moore a lot on first down. They had more than a 2:1 time of possession advantage and were up, not surprisingly, by 14 points at half. But their advantage at the half had nothing to do with the Texans first down play selection. It had everything to do with the Texans playing horrible defense and not moving the chains on offense by whatever means.
Read this and weep