I, too, was a little surprised about the tardy warning. However, as I noted previously, I really do like that OUN typically seems to have a higher threshold for issuing tornado warnings. This tends to reduce the False Alarm Rate, though it may lead to a few more zero- or negative-lead-time tornado events (which was the case on this day). However, on days with little in the way of severe weather expected, staffing may have been an issue, at least in terms of having enough people to collect data from the myriad of sources of information. Perhaps this will lead some NWSFOs to place a greater emphasis on the use of streaming video from chasers, or perhaps this was just a situation caused by a series of unfortunate events (e.g. a met got up from his desk to get a drink of water for a minute or two, perhaps someone from OUN was calling around to get confirmation from another source or to corroborate the SN report). Heck, as was noted previously, these are still people at the desks in the NWSFOs, and people can make mistakes.
Let's all just continue to do what we do in terms of providing as detailed of reports as we can, be it from SpotterNet, ham, etc., noting that it is apparently very useful for NWS operations if we (as chasers) include the "direction viewing" when we report funnels/tornadoes. Of course, it'd be helpful if at least a couple of chasers (myself included!) remember to call the local NWSFO just in case...