I have seen the following sentence in some article:
Frankly, I think the point it makes is rather obvious, but to my surprise the publication was followed by a further flood of objections that - more surprisingly - continues to the present day.
The context is that the author stated a controversial point in his/her article in 1980, and the publisher had received many objections.
Regarding the adverb of time "to the present day" and the fact that the objections existed before the time of speaking, I wonder whether it is not better to use the present perfect form of the verb "continue", namely, "has continued" instead.