I would completely agree. I would add that in addition to creating these more difficult conditions for the migrants themselves, it seems to have had the effect of fuelling violence and the standing of the paramilitary groups. That's because they've been able to recruit vulnerable young Venezuelans into the group, so it has had this double effect of being a detriment to the country as well.
This is something that we've seen not just in Latin America but around the world: When countries close borders to desperate populations, usually they don't stop coming in; they just come in through ways that are more harmful to both the migrants and the host country as well.