{{lr}}
Citations aren't required for links. Rather, the links are created based on whether we expect those entries to have an entry, meaning whether they are citable, not cited. Since these terms are included in other dictionaries, they are citable, and should not be marked as reconstructed.
In addition, your argument could apply to any language. Are you going to insist on treating all of the words in those entries as reconstructed until they are cited?
We're not just talking about any language here. I know you're well versed on the subject, so you know we really only have three sources of Old Dutch, the Leiden Willeram, the Wachtendonck Psalms and the Rhinelandic Rhyming Bible, and all of them are intertwined with OHG. That being the case, it's only wise to err on the side of caution when calling any Old Dutch term attested, just as it is to reconstruct a term.
Why do you have such a problem with linking to attested terms? Rather than erring on the side of caution, why not err on the side of what's actually correct? Saying something is reconstructed when it's not is no better than the opposite.
I disagree, but honestly, it's not such an issue for me -- I can let it be. What I had issue with is what I wrote to you about, which is undoing my revisions on mass without even bothering to message me. You've done this on several occasions now, and I find it very aggravating, and believe an administrator should demonstrate more tact.
It's pretty standard practice on Wiktionary to undo edits that you think are bad. You can ask User:SemperBlotto about that. On the other hand, it's common courtesy to discuss and form a consensus, before re-applying your changes after they were undone.