Credible/Honest Apologetics?

[Fake Messiah]

But then again, how honest is a Christian apologist if what he is saying can be easily researched and be seen as nonsense?
 
For instance, this is an excerpt from an article about Noah's flood by a Christian theologian and a philosopher, Norman L Geisler, from his book "Big Book of Christian Apologetics"

The Ark Was Large Enough. But assuming the flood was universal, the question remains as to how Noah could get all those animals in the ark. Engineers, computer programmers, and wildlife experts have all taken a look at the problem, and their consensus is that the ark was sufficient to the task. The ark was actually a huge structure—the size of a modern ocean liner, with three levels of deck (Gen. 6:13), which tripled its space to over 1.5 million cubic feet. This equals 569 railroad box cars. Second, the modern concept of “species” is not the same as a “kind” in the Bible. But even if it were, there are probably only some 72,000 different kinds of land animals that the ark would have needed to contain. Since the average size of land animals is smaller than a cat, less than half of the ark would be needed to store 150,000 animals—more than there probably were. Insects take only a very small space. The sea animals stayed in the sea, and many species could have survived in egg form. There would have been plenty of room left over for eight people and food storage.

As you can see, this is not just complete nonsense but he is making shit up.

You could ask "Couldn't he research what he is claiming? He certainly should have done it and yet he didn't - so how honest is that?"