There is no coincidence vs it could be coincidence

Some examples from the web:

• There is no coincidence in the life Suat!
• So, there is no coincidence.
• It would be quite a coincidence, if I was Two, but I am Un-Two, so, there is no coincidence.
• However, there is no obvious coincidence in time between these changes and the deterioration in the financial performance of the Union industry.
• The difference is that there are no coincidences, not when murder's involved.
• In politics, there is no such thing as coincidence.
• This conclusion was contested by several interested parties, which claimed that there is no reasonable and coherent coincidence in time between the injury and the increased imports from the country concerned.
• "there is no such thing as coincidence."
• Father's Landry protest was no coincidence.
• Like you said, no coincidences.
• Doreen's murder was no coincidence.
• It is no coincidence that there is a welter of articles from the other side of the Atlantic - some alarmed, others alarming - but all focusing on the apparently new reality to the United States of economic and monetary union.
• It's no coincidence that we met.
• Your friend's arrival in our hamlet is no coincidence.
• No coincidence a Czech wet work guy is on me after I get burned.
• My meeting with Duparde was no coincidence.
• It is no coincidence that we elkaar meet right now.
• Surely, it was no coincidence.
• Because these things are no coincidence.
• It's no coincidence that they're using primes.

Some examples from the web:

• Mr. Esterhase: It could be coincidence but...
• "It could be coincidence but..."
• Or it could be a coincidence.
• It was weird, yes, but it could be a coincidence.
• I mean, could it be coincidence?
• But after 25 years in a hospice working with people, many of whom were pronounced dead but then miraculously survived the account of what they actually experienced were so strikingly similar it couldn't just be coincidence.
• I knew it couldn't be a coincidence.
• It could possibly be a coincidence.
• It could just be a coincidence.
• I knew that it couldn't be a coincidence, so I checked.
• IT COULD BE A COINCIDENCE, OR AN ANOMALY. I CAN'T BE SURE
• It could be just a coincidence, some random werewolf travelling through?
• It could just be a coincidence, all right?
• I mean, it could all just be a coincidence, right?
• Statistically, given the size of the campus, it could be a complete coincidence that the murdered student is also a member of the group of sociopathic young male cadaver thieves.
• It might be coincidence but let's find out.
• Seems a little too coincidental to be coincidence, in my book.
• It can't be coincidence that the one thing we need to save your life is so close.
• So it just be coincidence that somebody posted a craigslist ad an hour ago that says, looking for Sophie B. Hawkins,
• Look, whatever it is in here that made you consider agent Morgan a suspect has to be coincidencE