Yes - absolutely.
Let's face it - you won't be on your guard if you haven't been burned before.... There's a reason that Jesus constantly warned his disciples "Be ye not deceived!"
The hardest thing for US to remember, when either we or our friends fall for some deception... While there may be very real consequences in our lives - Being DECEIVED is NOT the same as intentional blasphemy or Presumptuous, intentional sin...
The danger is falling out of fellowship because we feel tremendous fear, guilt, sadness, and shame.... We pull back out of fellowship and away from God - which makes us MORE vulnerable to attacks on ourselves.... Frequently, our Brothers and Sisters in Christ don't help the matter either - as they start swinging the big Hammer of "Well... YOU Blasphemed the Spirit! You are FOREVER unforgiven!" and drive them out of fellowship...
See... We don't understand the nature of this sort of thing.... If you CANNOT be forgiven - it's because you CANNOT Repent... and you cannot Repent because you cannot Humble yourself and seek the will of anyone OTHER than yourself... And.. People who are crying out to God with broken spirits only wanting to seek His will doesn't really fit the bill of "Unrepentant"....
The irony is that those truly "Blaspheming the Spirit" don't look or act like your usual, garden variety person who gets deceived.... Those truly caught up in intentional Blasphemy are CAREFULLY CRAFTING messages... They are carefully preparing... They are hunting for those whom they can deceive.... They are picking their "Mark" carefully before hand... They are fully aware of what they are doing....
Think of how a Wolf or a Lion hunts.... Do they walk right out in the open and start roaring? Nope! Why not? All the prey scatters... They are "Blown"... Instead, what do they do? They stay undetected... Unseen, unsmelled.... Completely hidden from all the available senses of the prey until that prey is ALREADY Caught!
See... The deer doesn't know the Wolf is there until the wolf's teeth are in the deer's neck.... If the deer knew - they wouldn't have gotten caught....