This is a terribly raw abuse, and should be appealed to the 5th Circuit on three grounds.
1) Unless there is an audio recording of the informant, there is no evidence that the information was not just fabricated by the police.
2) While information received is useful, it should be insufficient *by itself* for a warranted search, much less a search without a warrant. Warrantless searches are an abomination, and should only be used on rare occasions when time is critical. In which circumstances they must be specially justified after the fact. If they cannot be justified after the fact, than those who applied for them should be liable.
3) Seeking a warrant to justify a search based on evidence that was inadmissible should transfer that inadmissibility. The evidence was tainted, so it should remain tainted.
I agree that this is terrible—and Texas is my beloved state!