Thank you can, you're a gold mine when talking about UDH.
I understand that transition states may exist between UDH and RM, and that these "highly excited UDH states" may revert to RM because of the similar energy levels involved, however this would mean the existence of excitation energy levels of several hundreds of eVs of chemical origin. To put things in perspective a covalent "strong" bond is typically in the eV range (e.g. 4.5 eV for H2 as shown in the picture). 600 eV is in a different league. And if truly the case my point still stands on how to transit from "lowly excited" UDH back to "highly excited" UDH. To have transition states does just displace the issue but not solve it.
I'm not saying that Holmlid is wrong. Just that this claim is extraordinary. And if truly the case, that the understanding of how bonds of several hundreds of eVs can be created between a group of protons and electrons would be a huge step forward in the understanding of UDH.